2D Graphics C#

/*
User Interfaces in C#: Windows Forms and Custom Controls
by Matthew MacDonald
Publisher: Apress
ISBN: 1590590457
*/
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Drawing.Drawing2D;
namespace GDI_Basics
{
    /// 
    /// Summary description for TranslateTransform.
    /// 

    public class TranslateTransform : System.Windows.Forms.Form
    {
        /// 
        /// Required designer variable.
        /// 

        private System.ComponentModel.Container components = null;
        public TranslateTransform()
        {
            //
            // Required for Windows Form Designer support
            //
            InitializeComponent();
            //
            // TODO: Add any constructor code after InitializeComponent call
            //
        }
        /// 
        /// Clean up any resources being used.
        /// 

        protected override void Dispose( bool disposing )
        {
            if( disposing )
            {
                if(components != null)
                {
                    components.Dispose();
                }
            }
            base.Dispose( disposing );
        }
        #region Windows Form Designer generated code
        /// 
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// 

        private void InitializeComponent()
        {
            // 
            // TranslateTransform
            // 
            this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
            this.ClientSize = new System.Drawing.Size(292, 266);
            this.Name = "TranslateTransform";
            this.Text = "TranslateTransform";
            this.Paint += new System.Windows.Forms.PaintEventHandler(this.TranslateTransform_Paint);
        }
        #endregion
        private void TranslateTransform_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
        {
            // Draw several squares in different places.
            DrawRectangle(e.Graphics);
            e.Graphics.TranslateTransform(180, 60);
            DrawRectangle(e.Graphics);
            e.Graphics.TranslateTransform(-50, 80);
            DrawRectangle(e.Graphics);
            e.Graphics.TranslateTransform(-100, 50);
            DrawRectangle(e.Graphics);
        }
        private void DrawRectangle(Graphics g)
        {
            Pen drawingPen = new Pen(Color.Red, 30);
            // Draw a rectangle at a fixed position.
            g.DrawRectangle(drawingPen, new Rectangle(20, 20, 20, 20));
        }
        [STAThread]
        static void Main() 
        {
            Application.Run(new TranslateTransform());
        }
    }
}